Limit gauge



0-SCHLAUPWZ LIMIT GAUGE Filed June 5. 1922 Patented Get. 30, 1923.

A gTED STATES PATENT orrlcs.

OSWALD SCHLAUPITZ, 0F CANTONfOHIO, ASSIGNOR TO THE TIMKEN ROLLER BEARING COMPANY, OF CANTON, OHIO, A CORPORATION OF OHIO.

LIMIT Application filed June 3,

T 0 all whom it may concern.

Be it known that I, OswALD SCHLAUPITZ, a citizen of the United States, and a resident of the city of Canton, county of Stark, and State of Ohio, have invented a certain new and useful Improvement in Limit Gauges, of which the following is a specification.

This invention relates to limit gauges. for determining the outside measurements of articles of manufacture, such, for instance, as the circular inner bearing members of antifriction bearings, and has forits principal object to provide a plurality of adjustments whereby the gauge is adapted for use .in gaging articles of different sizes and shapes. Another object is tosimplify the gaging operation. Another object is to provide means for maintaining the desired adjustment of the gaging points in the event that an article of a width greater than the distance between said gaging points is forced therebetween. Other objects are simplicity and cheapness of construction and compactness of design. a

The invention consists principally in the improved limit gauge hereinafter shown and described; and it also consists in the combinations and arrangements of parts hereinafter described and claimed.

In the accompanying drawing, wherein like symbols refer to like parts wherever they occur,

Fig. 1 is a plan view of a limit gauge embodying my invention;

Fig. 2'is a central vertical section thereof partly in side elevation; and

Fig. 3 is an end elevation of the upper port-ion of the left-hand rider; and Fig. 4 is a vertical section through the upper portion of the right-hand rider and the contact supporting slide thereon on the line 4-4: in Fig. 2.

The present gauge, which is of the limitor ?go and no go type, is designed particularly with reference for use in gagin 7 conical or cylindrical bearing members for roller bearings, although it is also adapted for measuring other articles of manufacture of various sizes and shapes. The gauge comprises a base member in the form. of an upright hollow cylinder Shaving a circular supporting flange 4 adapted to restonand GAUGE.

1922. Serial No. 565,648.

be bolted .or otherwise rigidly secured to a work bench or other suitable support 5.

The portion of the cylinder or column 3 prises a table portion 9 and a depending cylindrical shank or stem portion 10 which is slidably mounted in the vertical bore in the upright column 3 of the base member.'

The lower end of the stem portion 10 of the work supporting table is threaded to re ceive the left-hand screw threaded upper portion of an adjusting screw 11, whose lower portion is provided with right-hand screw threads and is threaded through a. closure plate 12 fixed to the lower end of the column 3 of the base member. A hand wheel 13 is fixed to the lower end of the adjusting screw 11, wherebysaid screw may be readily rotated to raise or lower the work supporting table. Rotation of the shank portion 10 in the bore of the column is pre vented by means of a key 14 which slidabl v engages a keyway 15 formed in said shank portion. The upper portion of the hollow column 3 is split to receive the key 14; and a clamp screw 17 is provided for securing said key to said column and for clamping the shank portion 10 of the work supporting table 9 in the desired adjusted position.

The pair of left and right-hand riders 7 and 8 are disposed one on each side of the work supporting table 9 and are bored horizontally to receive the supporting arms 6, whereby said riders are adapted for horizontal. sliding movement towards and away from each other. Rotation of the riders on the supporting arms 6 is prevented by keys 18 having a sliding fit in keyways 19 formed in the exterior surface of said arms. The riders 7 and 8 are slotted as at 20, to receive the keys 18; and clamp screws 21 are provided securing said keys in said slots and for clamping said riders to the supporting arms 6 in the desired adjustedposition.

The riders 7 and S are moved towards and away from each other simultaneously and at the same rate of speed by means of a pair of adjusting; screws 22, one otflsvhich is threaded iiito'the outer end of the bore in each of the hollow supporting arms 6. The adjusting screw. forthe. left-hand rider is provided with left-hand screw threads; and

the adjusting screw for the right-hand rider is provided with right-hand screw threads. The adjusting screws are connected together for joint rotary movement by means of a shaft 23 havinga cylindrical middle portion," ouriialed in the inner ends; of the bores in the supporting arm's," and'squared end portioiis fitted into squared openings; in the inner ends of the adjusting screws 22 With this arrangementjthe riders may be quickly advanced towards or retracted. from the work supporting. table 9 by turning-either oneof'the [adjusting screws 22. The riders 7 and 8 are preferahlyconnected to the adju'sting screws22 by nieans of circular end plates 24:, which arerigidlyj secured to the outere'nds of the bored huh portions of the riders; constituting closures therefor, and are each provided with an elongatednotch which embraces a reduced portion 1 6 formed in .the outer end of each adjusting screw. Longitudinal. niovenient of the shaft 23is revented by a 25, which is threaded into the left-hand supporting arm and has a reduced lower artie projecting into Fixed table The rest as is' p'rovided War pair of horizontally spaced inclined bores, which extend from end to end of the rest,longitudinally of the supportingarrn 6, and are I adaptedto receive a pair of cylindrical contact pins A an'djB. The forward ends of the pair of contact pins and B are taon'e pin. of pair is commonly marked" fee? and inonly inarkedFNo gel The contact pins A and 'B havethreaded outer end portions a cl il il edr to cooperate with the' threaded outer endportions'ofthe bores which heya e mounted; and ai PT i 9 8 M pi a a o 'sh p dl re i e a u a le ool, wher by said-P ns may b a ius ed' o gitudinal lyoftheir aires. The walls ofthe time" 1 u cont clam

ct {pair are niounted. are split, and

p screws 30' are provided, whereby. said 'CQntaQ P ns .mar'b hiflhs th de e dju te positi i s an annular groove '26 formed" in the said shaft 23.

the other contactpin of said pairi's comportion o fthebores in which the extending longitudinally of the supporting arms, whereby said rest is adaptedfor hore lzontal sliding movement towards and away from the work supporting table and therider 7 on the opposite side thereof. The slide ,31 isadjusted longitudinally of the slideway 33'by means of a horizontal ad- 'ustin screw whose smaller diameter is provided with thirteenthreads to the inch, and whose larger diameter is provided with twenty threads to the inch. This screw is threaded into axially alined threaded bores in a depending lug 35 at the rear end of said slide and the rear face of'the rider 8, respectively.v The Wall of the threaded horein the depending lug 35 of the slide 31 is split horizontally, as at 36; and a clamping screw 37 extends through ,said split portion,

whereby the adjusting screw 34: for said anda clamping screw 39 extends horizontallythrough the rider crosswise of said slots, whereby the walls. of said slideway are i'a daplted to hedrawn towards each o her to clamp the undercut tongue portion 32 or" the slide gl therebetween in the desired adjusted position. p

Mounted in a bore, which extends longitudinally toit' the slide 31 from end to end thereof is a plunger in the form ota cylindrical tube 40. The forwardend portion of the bore in the hollow plunger a0 is taperedto receive the tapered shank portion 41 of contact nieinher C having a widened and beveledcontact head 42, which overhangs the work supporting table 9 and is of a width greater than the distance between the contact points of the pair of gauge pins A and B. i v

plunger L0 is enlarged to receive a coil spring 13, one end of which hears against the annular shoulder tor-l ned by such enlargernent and tends to {force said plunger forward. 'Thegother end of the spring" 43 bears against theinnerface of a screw plug 4A which is threaded into the enlarged rear end port on ofthe hore in'WlllCll the plunger s mounted, said plug constituting a closure for said bore and means jtor adjusting the pressureof said spring and forretaining the saine in position. A stop'collar 475 is formed on therear end of said plunger and is adapted to abut against the shoulder formedhy; the. enlarged rear end portion of the bore therefor, therehy' liinitingi the noyeinent of said plunger-in the direct onof the worksupporting table. A guide screw; 4 6 .is threaded upwardly th rough the base the slide 31 and has a rerlri cecl.iipper a relrt o i h t rirpis ts i e/ y 47 forined in the exterior surface of the and the cone should be rejected spring-pressed plunger 40. This plunger guide screw prevents rotation of the plunger 0 in the bore of the slide 31 while permitting sliding movement of said plunger in said bore...

The gaging device is used as follows: The work supporting table 9 is adjusted vertically by means oi the hand wheel 13 to a height that will bring .a cone supported thereon in. line with the adjacent contact ends of the contactmembers A, B and C. A master cone of maximum size is then placed on the table and slid between the contact points of the contact members A and (l. The contact members A and C are then adjusted, in, the manner liereinbetore describet, to bring the contact points thereof into contact with the opposite sides of said ma imum master cone. A master cone of minimum size is then placed on the table and slid'between the contact pointsof the contact members B and C, and contact member 3 is adjusted, in the manner here inbet'ore described, to bring the contact point thereof into contact with said minimum master cone. The cones that are to be inspected are then placed on the work table and slid between points A and C. It the cone passes freely between these, points and does not pass between the points 13 and C,

the cone is of the desired size; that is, the size between the limits set by the gaging points A, B and C. If the cone passes between the points B and C, the diameter of the cone is shown to be too small and the cone should be rejected as being undersize. If the cone does not pass through points A and C, the diameter is shown to be excessive as being over size.

In the event that an over size cone is forced between the gaging points, damage to the gauge is prevented by the contact member 0, which yields an amount sailicient to enable said over size cone to passbetween the contact points without springing the gauge or disturbing original setting thereof. 7

The pressure of the spring 4&3 is sufiicient to permit a cone, whose diameter is within the limits set by the maximum and minimum master cones, to he slid between the points of the contact members without disturbing the spring pressed contact member C; but it the cone is ofa diameter larger than the limits set by the master cones said a" yields and permits the contact membe to be pushed back the over size It is evident that'numerous changes may cone without springing the contact mem be made without departing from the invention and I do not wish to be limited to the precise construction shown and described.

What I claim is:

1. A gaging device comprising a base, a vertically adjustable .article support mounted thereon, a pair oi" opposed gaging members mounted on said base and arranged one on each side or said support, one of said members being stationary and the other of said members being arranged to yield under the pressure of an article passing between said members, and means for independently adjusting each 01" said members towards and away from each other to vary the normal gap therebetween.

2. A limit gauge comprising a base, an article support adjustably mounted thereon, a pair of gaging members arranged on one side of said support, and a single gaging member mounted on said base and located on the other side of said support, and means for independently adjusting each member of said pair of gaging members towards and away from said single gaging member to vary the gap between each member of said said support, and a single member mounted on said base and located on the other side of said support and arranged to yield under the pressure of an article passing between said pair of gaging members and said single gaging member, and means for independently adjusting each member of said pair of gaging members and said single gaging member towards and away from each other to vary the normal gap between each member of said pair of gaging members and said single gaging member.

4. A limit gauge comprising a base, an article support mounted thereon, a pair of gaging members mounted on said base and arranged on one side of said support, and a single gaging member mounted on said base and arranged on the other side of said support, means whereby said pair of gaging members and said single gaging member are adapted for joint bodily movement towards and away from each other and means for imparting such movement.

5. A limit gauge comprising a base, a vertically adjustable article support mounted thereon, a pair of independently horizontally adjustable gaging members mounted 011 said base and arranged on one side of said support, and a' single spring-pressed gaging member mounted on said base and arranged on the other side of said support, means whereby said pair of gaging members and said single gaging member are adapted lit) - vertically for joint bodily movement towards and away from each other at the same rate of travel, and means for imparting such movement. V

6. A gaging device comprising a base, a vertically adjustable article support mounted thereon, a pair of independently horizontally adjustable gaging members mounted on said base and arranged one on each side of said support, means whereby said pair of gaging members are arranged for joint bodily movement towards and away from each other, means for-imparting such movement, and means for locking said pair of gaging members in the desired adj usted position.

7. A gaging device comprising base, a adjustable article support mounted thereon, pair of gaging members disposed one on each side of said article support, one of said gaging members being yieldably mounted, a pair of supporting members for said pair oi gaging members, said supporting members being mounted on said base, means for adjusting each of said gaging members with relation to the-sup porting member therefor, and means operativel connecting said pair of supporting mem. ers, whereby they are adapted for joint bodily movement towards and awav from said article support. 1

8. A limit gauge comprising a base, a work support mounted thereon, a pair of gaging members mounted on saidbase and located on one side of said work support, and a single gaging member mounted on said base and located on the other side of said support, and means operatively connecting said pairs of gaging members with said single gaging member, whereby said gaging members are adapted for joint bodlly movement towards and away from said work support) i v 9. A limit gauge compr sing a base,

a Vertically adjustable work support mounted thereon, a pair of gaging means located on one side of said support, and a single spring-pressed gaging therefor, means for adjusting said single gaging member with relation to the supporting member therefor, andmeans operatively connecting said pair of supporting members, whereby said members are adapted for joint bodily movement towards and away from said work support. g

10. A gaging device comprising a base, an article support mounted on said base,a pair of supports mounted on said base and arranged one on each *sideof said article support, means whereby said supports are adapted for joint bodily movement towards and away from each other, meansfor impart-in such movement, a holder. on each of said supports, means foradjusting one of said holders toward and away from the other of said holders, a pair of independently adjustable gaging members mounted on one of saidfsupports, and a single ad justable gaging member adjustably mounted on the other of said supports.

Signed. at Canton, Ohio, this 31st May, 1922.

OSWALD SGHLAUPITZ.

adjusting said pair of gaging members day of member located on theother side of said support, 

